diff --git a/custom_components/localtuya/light.py b/custom_components/localtuya/light.py
index e99414e..5a33192 100644
--- a/custom_components/localtuya/light.py
+++ b/custom_components/localtuya/light.py
@@ -33,7 +33,6 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-MIRED_TO_KELVIN_CONST = 1000000
 DEFAULT_MIN_KELVIN = 2700  # MIRED 370
 DEFAULT_MAX_KELVIN = 6500  # MIRED 153
 
@@ -154,13 +153,11 @@ class LocaltuyaLight(LocalTuyaEntity, LightEntity):
             CONF_BRIGHTNESS_UPPER, DEFAULT_UPPER_BRIGHTNESS
         )
         self._upper_color_temp = self._upper_brightness
-        self._max_mired = round(
-            MIRED_TO_KELVIN_CONST
-            / self._config.get(CONF_COLOR_TEMP_MIN_KELVIN, DEFAULT_MIN_KELVIN)
+        self._max_mired = color_util.color_temperature_kelvin_to_mired(
+            self._config.get(CONF_COLOR_TEMP_MIN_KELVIN, DEFAULT_MIN_KELVIN)
         )
-        self._min_mired = round(
-            MIRED_TO_KELVIN_CONST
-            / self._config.get(CONF_COLOR_TEMP_MAX_KELVIN, DEFAULT_MAX_KELVIN)
+        self._min_mired = color_util.color_temperature_kelvin_to_mired(
+            self._config.get(CONF_COLOR_TEMP_MAX_KELVIN, DEFAULT_MAX_KELVIN)
         )
         self._color_temp_reverse = self._config.get(
             CONF_COLOR_TEMP_REVERSE, DEFAULT_COLOR_TEMP_REVERSE